Annunciator.



A. SULLWOLD.

ANNUNCIATOR APPLICATION FILED OCT-4,1915.

Patented July 3, 19W.

2 SHEETSSHEET 1.

A. SULLWOLD.

ANNUNC'IATOR.

APPLICATION FILED OCT-$1915.

1,232,453, Patented July 3, 1917.

2 SHEETSSHEET 2.

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ALBERT sunnwonn, on

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ANNUEQGIZATOR.

Specification of Letters intent.

Patented July 3, 1917.

Application filed october 4, 1915. Serial No. tacos.

To all whom it may concern:

Be it known that I, ALBERT Surnwonn, a citizen or" the United States, residing at Grove, in the county of Delaware and State of @klahoma, have invented certain new and useful Improvements in unciators, of which the following is a specification,reierenoe being had to'the accompanying draw- This invention relates to certain improvements in annunciators and has relation more particularly to a device of this general character wherein an audible signal is employed; and an object'of the invention is to provide a device of this general character having novel and improved means whereby the op eration is under thermostatic control.

Furthermore, it is an object of the invention to provide a device of this general character having novel and improved means whereby the same may be employed as a fire alarm and whereby an alarm will be given upon the temperature adjacent the device til reaching a predetermined degree.

it is also an object of the invention to provide a device of this general character where in the signal is adapted to be electrically operated and wherein novel and improved means are employed including a trip bar for normally holding the o crating circuit open and whereby said trip her is automatically operated to release a spring bar to close the operating circuit under predetermined conditions.

Furthermore, it is an object of the inven tion to provide a novel and improved annunciator wherein a plurality of signals may be arranged in parallel and whereby each or the alarms may be cut out independently oi the remainder of the alarms.

The invention consists in the details of 1 construction and in the combination and arrangement or the several parts of my imroved annunoiator whereby certain mporrendered smpler, less expensive and othwise more convenient and advantageous or use, all as will be hereinafter more, fully et forth.

The novel features of the invention will he careinlly defined in theappended claims. In order that my invention may he the ant advantages are attained and the device better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein Figure l is a diagrammatic view of an annunciator constructed in accordance with an embodiment of my invention;

Fig. 2 is a view in side elevation of a single device as included in my invention;

Fig. 3 is a view in top plan of the device as illustrated in Fig. 2, with the top or coverin an open position;

Fig. 4 is a sectional view taken substantially on the line :4 of Fig. 2; and

Fig. 5 is a view in elevation, detached, of the trip bar as herein disclosed.

As disclosed in the accompanyin drawings, 1 denotes a casing substantia ly rectangular in form and having its upper face open, said upper face being adapted to be closed by the hinged top or cover 2, said top or cover being maintained in closed adjustment by the meeting locking members 3 of conventional construction.

@ne side of the casing 1 at an end thereof has secured thereto the block l to which is secured an extremity of the inwardly and longitudinally disposed spring bar 5 havin secured to its free end the cross head 6 and through the free extremities of which are dlsposed the contact members '8 and 8, the

member 7 being in electrical connection with the spring bar 5 through the medium of the conductor a electrically connected with the contact 7 and the plate 5.

The members 7 and v8 extend through and beyond the head 5 and coact, respectively, with the contact plates 9 and 10 and the anchored extremity of the spring bar 5 is in electrical connection through the medium of the conductor 6 with the center pole of the dry cell or battery B positioned withinthe casing l. The contact 8 is also in electrical connection with the center ole of the cell or battery B through the medium of the electrical conductor c, the contact plate 9 is in electrical connection through the medium oi the conductor d with the signal or hell S, said bell being in electrical connection with the side pole of the cell or, battery B through the medium of the conductor e.

The contact plate 10 is in electrical connection through the medium of the conductor f with the hanger 11 arranged at one end of the housing 1,- while the second hanger 12 at the opposite end of the housing is in electrical connection with the side pole of the cell or battery medium of the conductor g.

It will be perceived that upon the co maining devices in the event the switches A are in closed position as illustrated in Fig. 1. It will also be self-evident that an indivi dual alarm may be cut out of the system by opening the switch A which coacts with each of the contact plates 9 and 10. As disclosed in Fig. 1,,it will be perceived that should the contacts 7 and 8 at the bottom of the sheet be caused to engage the plates 9 and 10 that the signal S- of the first two devices will operate while the signal of the third device will remain silent as theswitch A included therein is in open adjustment.

The spring bar 5 normally maintains the contacts 7 and 8 out of engagement with the plates 9 and 10 through themedium of the trip bar 14 pivotall with a block 16 secure casing lropposite to the block 4 and the trip bar 14 overlies thespring bar 5 and is ,provided'with a notch '17 engageable with the bar 5 whereby the same is held in inoperative position.

Supported by the bracket 18 depending from the casing 1 is the thermostatic Wafer W of'conventional form proyided z'with an upstanding threaded member l9 with which is adjustably engaged, the rod for ,post 20 which extends upw'ardly withiiithe casing 2 and terminates directly beneath the trip bar 14. It will be perceived that upon'the temperature immediately adjacent the wafer W reachin a predetermined? degree, the expansion 0 said wafer willLgfelevate therod or post 20 to cause said post or rod to engage the tripbar 14 and'irelease the same from the spring bar whereupon the contacts 7 and 8 carried byftii'e' head 6 will automatically engage thel 'platespi 9 and 10 through the inherent resiliency possessed by the spring bar 5.x Whenitisfdesired toreset the device, the spring bar' ffi has connected therewith the rod 21 whichlextends exteriorlyof the casing 1 througha side thereof. As "is believed to be self-evident, it is only necessary to force the rod 21;iriwardly until the trip bar 14 is properly engaged with the spring bar 5, said trip bar 14 being B through the engaged, as at 15,, to theside of the sesame under the influence of the retractable member 22 which urges the tri bar 14 in a direction toward the spring iiar 5. 7

From the foregoing description, it is thought to be obvious that an annunciator constructed in accordance with my invention is of an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the facility with-which it may convenience and be assembled, and it will also be obvious that my invention is susceptible of some change and modification wit out material departure from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to rangement and formation of the several parts herein shown in carrying out my invention in practice. I

I claim: 7

- 1. A circuit closer including a support, a block carried by the support, a. spring bar secured to one end of the block and overlying the support, said spring bar being in communication with a source of supply, a head carried by the outer end of the spring bar at theside thereof and opposed to the support, a contact carried by the head and in electrical connection with the spring bar, a stationary contact carried by the support, a pivoted trip bar provided adjacent one end with a notch to receive the spring bar for holding the contact carried by the head of the spring bar out the stationary contact, a thermostat carried bythe support at the side thereof opposite ed member disposed ina. direction toward the precise arof engagement with the support, and a rod adjustably engaged with the'threaded member and'loosely disposed through the support and occupying the same plane asthe trip bar and adapted to contact with the trip bar upon expansion of the thermostat for disengaging the trip bar from the spring'bar.

, 2. A circuit closer including a support, a bloclr carried by the support,a spring bar secured" to one end of, the block and overlying the snpport, said spring bar being in communication with a source of supply, a

head carried by the outer end of the spring bar 'at jthe'fside thereof. and opposed to the suppo gtga contact carried by the head therethrough and in electrical connection with the spring barge, stationary contact carried by the support, E pivoted trip bar provided adjacent one e with a-notch to receive the spring bangror holding the contact carried by the heztd'ofthe spring barout of engage-. mentfwith the: stationary contact, means under thermostatic control for disengaging the trip bar from the-spring bar, and a rod loosely A movable in the. sanie' general direction as disposed through the support and the spring her, said member having its. inner end secured to the spring bar whereby said spring bar may be moved into operative engagement with the trip bar and to disengage the Contact carried by the head of the trip bar out of engagement With the stationary contact In testimony whereof I hereunto efiix my signature in the presence of two wltnesses.

ALBERT- SULLWOLD.

Witnesses:

GRIN Gr. HOLT, G. G. THOMAS. 

